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Synthesis and Applications of Silica Supported Dichlorotriazine (Si-DCT) in Nucleophilic Scavenging
Paper Type  |
Contributed Paper |
Title |
Synthesis and Applications of Silica Supported Dichlorotriazine (Si-DCT) in Nucleophilic Scavenging |
Author |
Mookda Pattarawarapan* and Sunantanee Singhatana |
Email |
mpatt155@yahoo.com |
|
Abstract: A new method for heterogeneous nucleophilic scavenging with silica supported dichlorotriazine (Si-DCT, 2) is described. The Si-DCT was prepared by immobilized commercial grade silica gel with 3-aminopropyltrimethoxysilane, followed by reacting with cyanuric chloride. The applications of Si-DCT in removal of unwanted nucleophilic impurities from reaction mixture were demonstrated. It was shown that excess amines from sulfonamide and amide syntheses can be completely removed by adding Si-DCT and filtering off the solid. The desired products were obtained in high yields and purities without any further purification steps.
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Start & End Page |
203 - 209 |
Received Date |
2005-09-29 |
Revised Date |
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Accepted Date |
2006-01-01 |
Full Text |
Download |
Keyword |
silica gel, scavenger resins, supported reagents, solid-supported scavenger |
Volume |
Vol.33 No.2 (MAY 2006) |
DOI |
|
Citation |
Pattarawarapan M. and Singhatana S., Synthesis and Applications of Silica Supported Dichlorotriazine (Si-DCT) in Nucleophilic Scavenging, Chiang Mai J. Sci., 2006; 33(2): 203-209. |
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